--- ray/src/gen/mkillum.c 2003/06/27 22:27:45 2.15 +++ ray/src/gen/mkillum.c 2004/10/28 00:50:47 2.23 @@ -1,5 +1,5 @@ #ifndef lint -static const char RCSid[] = "$Id: mkillum.c,v 2.15 2003/06/27 22:27:45 greg Exp $"; +static const char RCSid[] = "$Id: mkillum.c,v 2.23 2004/10/28 00:50:47 greg Exp $"; #endif /* * Make illum sources for optimizing rendering process @@ -8,8 +8,10 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.15 200 #include #include -#include "mkillum.h" #include "platform.h" +#include "rtprocess.h" +#include "mkillum.h" +#include "random.h" /* default parameters */ #define SAMPDENS 48 /* points per projected steradian */ @@ -24,13 +26,13 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.15 200 /* rtrace command and defaults */ char *rtargv[64] = { "rtrace", "-dj", ".25", "-dr", "3", "-dv-", - "-ab", "2", "-ad", "256", "-as", "128", "-aa", ".15", }; + "-ab", "2", "-ad", "1024", "-as", "512", "-aa", ".1", }; int rtargc = 14; /* overriding rtrace options */ char *myrtopts[] = { "-I-", "-i-", "-ld-", "-ov", "-h-", "-fff", "-y", "0", NULL }; -struct rtproc rt; /* our rtrace process */ +struct rtproc rt0; /* head of rtrace process list */ struct illum_args thisillum = { /* our illum and default values */ 0, @@ -48,6 +50,8 @@ int matselect = S_ALL; /* selection criterion */ FUN ofun[NUMOTYPE] = INIT_OTYPE; /* object types */ +char persistfn[] = "pfXXXXXX"; /* persist file name */ + int gargc; /* global argc */ char **gargv; /* global argv */ #define progname gargv[0] @@ -57,18 +61,37 @@ int doneheader = 0; /* printed header yet? */ int warnings = 1; /* print warnings? */ +int done_rprocs(struct rtproc *rtp); +void init(int np); +void filter(register FILE *infp, char *name); +void xoptions(char *s, char *nm); +void printopts(void); +void printhead(register int ac, register char **av); +void xobject(FILE *fp, char *nm); -main(argc, argv) /* compute illum distributions using rtrace */ -int argc; -char *argv[]; + +int +main( /* compute illum distributions using rtrace */ + int argc, + char *argv[] +) { + int nprocs = 1; char *rtpath; FILE *fp; register int i; /* set global arguments */ gargv = argv; + /* check for -n option */ + if (!strcmp(argv[1], "-n")) { + nprocs = atoi(argv[2]); + if (nprocs <= 0) + error(USER, "illegal number of processes"); + i = 3; + } else + i = 1; /* set up rtrace command */ - for (i = 1; i < argc; i++) { + for ( ; i < argc; i++) { if (argv[i][0] == '<' && argv[i][1] == '\0') break; rtargv[rtargc++] = argv[i]; @@ -92,13 +115,19 @@ char *argv[]; } } gargc = i; - rtargc--; + if (!strcmp(rtargv[--rtargc], "-defaults")) + nprocs = 0; + if (nprocs > 1) { /* add persist file if parallel invocation */ + rtargv[rtargc++] = "-PP"; + rtargv[rtargc++] = mktemp(persistfn); + } + /* add "mandatory" rtrace options */ for (i = 0; myrtopts[i] != NULL; i++) rtargv[rtargc++] = myrtopts[i]; + /* finally, put back final argument */ rtargv[rtargc++] = argv[gargc-1]; rtargv[rtargc] = NULL; - /* just asking for defaults? */ - if (!strcmp(argv[gargc-1], "-defaults")) { + if (!nprocs) { /* just asking for defaults? */ printopts(); fflush(stdout); rtpath = getpath(rtargv[0], getenv("PATH"), X_OK); if (rtpath == NULL) { @@ -107,13 +136,13 @@ char *argv[]; exit(1); } execv(rtpath, rtargv); - perror(rtpath); + perror(rtpath); /* execv() should not return */ exit(1); } if (gargc < 2 || argv[gargc-1][0] == '-') error(USER, "missing octree argument"); /* else initialize and run our calculation */ - init(); + init(nprocs); if (gargc+1 < argc) for (i = gargc+1; i < argc; i++) { if ((fp = fopen(argv[i], "r")) == NULL) { @@ -129,27 +158,56 @@ char *argv[]; quit(0); } +static void +killpersist(void) /* kill persistent rtrace process */ +{ + FILE *fp = fopen(persistfn, "r"); + int pid; + if (fp == NULL) + return; + if (fscanf(fp, "%*s %d", &pid) != 1 || kill(pid, SIGALRM) < 0) + unlink(persistfn); + fclose(fp); +} + +int +done_rprocs(struct rtproc *rtp) +{ + int st0, st1 = 0; + + if (rtp->next != NULL) { /* close last opened first! */ + st1 = done_rprocs(rtp->next); + free((void *)rtp->next); + rtp->next = NULL; + } + st0 = close_process(&rtp->pd); + if (st0 < 0) + error(WARNING, "unknown return status from rtrace process"); + else if (st0 > 0) + return(st0); + return(st1); +} + void -quit(status) /* exit with status */ -int status; +quit(int status) /* exit with status */ { int rtstat; - rtstat = close_process(&(rt.pd)); + if (rt0.next != NULL) /* terminate persistent rtrace */ + killpersist(); + /* clean up rtrace process(es) */ + rtstat = done_rprocs(&rt0); if (status == 0) - if (rtstat < 0) - error(WARNING, - "unknown return status from rtrace process"); - else - status = rtstat; + status = rtstat; exit(status); } - -init() /* start rtrace and set up buffers */ +void +init(int np) /* start rtrace and set up buffers */ { - extern int o_face(), o_sphere(), o_ring(); + struct rtproc *rtp; + int i; int maxbytes; /* set up object functions */ ofun[OBJ_FACE].funp = o_face; @@ -159,30 +217,42 @@ init() /* start rtrace and set up buffers */ #ifdef SIGPIPE /* not present on Windows */ signal(SIGPIPE, quit); #endif - /* start rtrace process */ - errno = 0; - maxbytes = open_process(&(rt.pd), rtargv); - if (maxbytes == 0) { - eputs(rtargv[0]); - eputs(": command not found\n"); - exit(1); + rtp = &rt0; /* start rtrace process(es) */ + for (i = 0; i++ < np; ) { + errno = 0; + maxbytes = open_process(&rtp->pd, rtargv); + if (maxbytes == 0) { + eputs(rtargv[0]); + eputs(": command not found\n"); + exit(1); + } + if (maxbytes < 0) + error(SYSTEM, "cannot start rtrace process"); + if (!i && np > 1) + sleep(2); /* wait for persist file */ + rtp->bsiz = maxbytes/(6*sizeof(float)); + rtp->buf = (float *)malloc(6*sizeof(float)*rtp->bsiz--); + rtp->dest = (float **)calloc(rtp->bsiz, sizeof(float *)); + if (rtp->buf == NULL || rtp->dest == NULL) + error(SYSTEM, "out of memory in init"); + rtp->nrays = 0; + if (i == np) /* last process? */ + break; + rtp->next = (struct rtproc *)malloc(sizeof(struct rtproc)); + if (rtp->next == NULL) + error(SYSTEM, "out of memory in init"); + rtp = rtp->next; } - if (maxbytes < 0) - error(SYSTEM, "cannot start rtrace process"); - rt.bsiz = maxbytes/(6*sizeof(float)); - rt.buf = (float *)malloc(6*sizeof(float)*rt.bsiz--); - rt.dest = (float **)malloc(sizeof(float *)*rt.bsiz); - if (rt.buf == NULL || rt.dest == NULL) - error(SYSTEM, "out of memory in init"); - rt.nrays = 0; + rtp->next = NULL; /* set up urand */ initurand(16384); } void -eputs(s) /* put string to stderr */ -register char *s; +eputs( /* put string to stderr */ + register char *s +) { static int midline = 0; @@ -205,9 +275,11 @@ char *s; } -filter(infp, name) /* process stream */ -register FILE *infp; -char *name; +void +filter( /* process stream */ + register FILE *infp, + char *name +) { char buf[512]; FILE *pfp; @@ -237,9 +309,11 @@ char *name; } -xoptions(s, nm) /* process options in string s */ -char *s; -char *nm; +void +xoptions( /* process options in string s */ + char *s, + char *nm +) { extern FILE *freopen(); char buf[64]; @@ -398,8 +472,8 @@ char *nm; printf("# %s", s+2); } - -printopts() /* print out option default values */ +void +printopts(void) /* print out option default values */ { printf("m=%-15s\t\t# material name\n", thisillum.matname); printf("f=%-15s\t\t# data file name\n", thisillum.datafile); @@ -420,9 +494,11 @@ printopts() /* print out option default values */ } -printhead(ac, av) /* print out header */ -register int ac; -register char **av; +void +printhead( /* print out header */ + register int ac, + register char **av +) { putchar('#'); while (ac-- > 0) { @@ -433,9 +509,11 @@ register char **av; } -xobject(fp, nm) /* translate an object from fp */ -FILE *fp; -char *nm; +void +xobject( /* translate an object from fp */ + FILE *fp, + char *nm +) { OBJREC thisobj; char str[MAXSTR]; @@ -486,7 +564,7 @@ char *nm; checkhead(); /* process object */ if (doit) - (*ofun[thisobj.otype].funp)(&thisobj, &thisillum, &rt, nm); + (*ofun[thisobj.otype].funp)(&thisobj, &thisillum, &rt0, nm); else printobj(thisillum.altmat, &thisobj); /* free arguments */